82074688 has 14 divisors (see below), whose sum is σ = 162867086. Its totient is φ = 41037312.

The previous prime is 82074683. The next prime is 82074739. The reversal of 82074688 is 88647028.

It can be written as a sum of positive squares in only one way, i.e., 71368704 + 10705984 = 8448^2 + 3272^2 .

It is not an unprimeable number, because it can be changed into a prime (82074683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641145 + ... + 641272.

Almost surely, 2^82074688 is an apocalyptic number.

It is an amenable number.

82074688 is a deficient number, since it is larger than the sum of its proper divisors (80792398).

82074688 is a wasteful number, since it uses less digits than its factorization.

82074688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282429 (or 1282419 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 82074688 is about 9059.5081544199. The cubic root of 82074688 is about 434.5800112466.

The spelling of 82074688 in words is "eighty-two million, seventy-four thousand, six hundred eighty-eight".